Bioecological characters of the sawfly Pristiphora subarctica (Hymenoptera,Tenthredinidae) in spruce plantations of Krasnoyarsk Territory

Biology and ecology of the sawfly Pristiphora subarctica Forssl., a species new to Siberia, were studied. This species is capable of outbreaks in plantations of spruce Picea obovata Ledeb. The data on specific features of nutrition, fecundity of adults, causes of death of wintering pronymphs, and the location of the pest in litter, tree crowns, and stand are presented.